Chain shortener
FIG. 1 is a perspective view of a chain softener, showing my new design; 
     FIG. 2 is a top plan view thereof; 
     FIG. 3 is a bottom plan view thereof; 
     FIG. 4 is a right side elevational view, the opposite side being a mirror image thereof; and 
     FIG. 5 is an end elevational view taken along line 5--5 in FIG. 1.